Chest expander for animal experiment

Abstract

The utility model relates to the technical field of animal experiments, and provides a chest expander for animal experiments, which comprises a mounting plate, the outer side of the mounting plate is fixedly connected with uniformly distributed reinforcing frames, a connecting plate is rotatably connected between the two reinforcing frames on the corresponding side, and the upper end of the connecting plate is fixedly connected with a mounting block I; a rotating seat is fixedly connected to the front side of the first mounting block, an arc-shaped plate is rotatably connected to the front side of the rotating seat, a clamping block is fixedly connected to the other end of the arc-shaped plate, and a second mounting block is fixedly connected to the lower end of the connecting plate. According to the device, the arm of an animal is attached to the connecting plate and arranged at the arc-shaped plate, the pull rod is pulled outwards to drive the inserting rod to move outwards, the spring is stressed to contract, the arc-shaped plate is rotated at the moment to clamp the clamping block and the mounting box, the pull rod is loosened, and the spring rebounds through the elasticity of the spring; and then the inserting rods are driven to reset and are inserted into the inserting holes, so that the arc-shaped plates are mounted, and the animal arms are fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of animal experiments, in particular to a chest expander for animal experiments. Background Art

[0002] Animal chest expander is a device used in animal experimental research, usually used to study the respiratory system function or other related physiological research of mammals (such as mice, rats, rabbits, etc.). This device can monitor and adjust specific physiological parameters of animals to simulate or study specific physiological states or diseases.

[0003] After searching, the existing patent (publication number: CN208989225U) discloses a chest expander for small animals for experiments, including a connecting plate, a fixing plate is arranged at the bottom of the connecting plate, two through-holes are provided on the lower side of the surface of the fixing plate, and the two through-holes are symmetrical about the longitudinal axis of the fixing plate, a rubber rope runs through the two through-holes, a supporting plate is arranged on the top of the connecting plate, two hooks are arranged on the upper side of the surface of the supporting plate, and the two hooks are symmetrical about the longitudinal axis of the supporting plate. Through the setting of the chest expander for small animals for experiments, the structure is simple and easy to operate, the opening can be adjusted at will with the length of the rubber band or the fixing line, the upper side of the surgical field is clear and unobstructed, the surgical operation time of the entire animal model is shortened without expanding the surgical wound, and the success rate of the modeling animal is greatly improved.

[0004] However, in the above scheme, it is difficult to effectively fix the animal's arms, and the arms may move or swing freely during the chest expansion process, increasing the risk of the animal's self-injury and posing certain safety hazards.

[0005] In view of this, the utility model provides a chest expander for animal experiments. Utility Model Content

[0006] The utility model provides a chest expander for animal experiments, which solves the problem in the related art that it is difficult to effectively fix the animal's arms.

[0007] The technical scheme of the utility model is as follows: a chest expander for animal experiments comprises a mounting plate, the outer side of the mounting plate is fixedly connected with a uniformly distributed reinforcement frame, a connecting plate is rotatably connected between two reinforcement frames on corresponding sides, the upper end of the connecting plate is fixedly connected with a mounting block 1, the front side of the mounting block 1 is fixedly connected with a rotating seat, the front side of the rotating seat is rotatably connected with an arc plate, the other end of the arc plate is fixedly connected with a clamping block, the lower end of the connecting plate is fixedly connected with a mounting block 2, the front side of the mounting block 2 is fixedly connected with a mounting box, the mounting box is clamped with the clamping block, the outer end of the inner wall of the clamping block is provided with a plug hole, the inner wall of the mounting box is fixedly connected with a guide cylinder, the inner wall of the guide cylinder is slidably connected with a plug rod, the plug rod is clamped with the plug hole, one side of the plug rod is fixedly connected with a pull rod, and a spring is sleeved on the outer side of the pull rod.

[0008] Preferably, the outer end of the spring is fixedly connected to the inner wall of the plug-in rod, and the inner end of the spring is fixedly connected to the outside of the plug-in rod.

[0009] Preferably, a positioning frame is fixedly connected to the rear side of the mounting plate, and a motor is fixedly connected to the top end of the positioning frame.

[0010] Preferably, a worm is fixedly connected to the driving end of the motor, and a worm wheel is meshingly connected to the left side of the worm.

[0011] Preferably, a screw is fixedly connected to the middle portion of the inner wall of the worm wheel, and the front end of the screw is rotatably connected to the inner wall of the positioning frame.

[0012] Preferably, a limiting ring is fixedly connected to the rear side of the screw rod, and a threaded block is threadedly connected to the outer side of the screw rod.

[0013] Preferably, the outer side of the threaded block is fixedly connected to a left and right opposite articulated frame 1, and the inner side of the articulated frame 1 is rotatably connected to a connecting rod.

[0014] Preferably, the other end of the connecting rod is rotatably connected to an articulated frame 2, and the articulated frame 2 on the corresponding side is fixedly connected to the rear side of the connecting plate on the corresponding side.

[0015] The working principle and beneficial effects of the utility model are:

[0016] In the utility model, the animal's arm is attached to the connecting plate and placed on the arc plate, and the pull rod is pulled outward to drive the plug rod to move outward, and the spring is forced to contract. At this time, the arc plate is rotated to engage the clamping block with the installation box, and the pull rod is released. The spring rebounds by its own elastic force, and then drives the plug rod to reset and insert into the plug hole, thereby completing the installation of the arc plate and the fixing effect of the animal's arm, thereby ensuring that the arm of the animal experimental subject remains stable during the chest expansion process, preventing it from moving or twisting uncontrollably, thereby improving the stability and repeatability of the experiment.

[0017] In the utility model, a motor drives the worm to rotate, and during the rotation process, the worm drives the worm wheel to rotate through its own meshing transmission, and further drives the screw to rotate, so that the threaded block moves, and the connecting plate is driven to rotate through the articulated frame 1, the connecting rod and the articulated frame 2, so as to achieve the chest expansion effect on the animal. The worm and the worm wheel ensure the uniform distribution of force in the chest expansion process, avoid local excessive pressure on the animal experimental body or uneven chest expansion effect, thereby improving the accuracy and reliability of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is an isometric stereoscopic schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the positioning frame of the utility model;

[0021] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the connecting plate of the utility model;

[0023] Figure 5 It is a schematic diagram of the internal structure of the installation box of the utility model.

[0024] In the figure: 1. mounting plate; 2. positioning frame; 3. motor; 4. worm; 5. worm wheel; 6. screw; 7. limiting ring; 8. threaded block; 9. hinged frame 1; 10. connecting rod; 11. hinged frame 2; 12. connecting plate; 13. reinforcement frame; 14. mounting block 1; 15. mounting block 2; 16. rotating seat; 17. mounting box; 18. arc plate; 19. clamping block; 20. plug-in hole; 21. guide cylinder; 22. plug-in rod; 23. pull rod; 24. spring. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0026] The preferred embodiment of the chest expander for animal experiments provided by the utility model is as follows Figures 1 to 5 As shown: a chest expander for animal experiments, including a mounting plate 1, the outer side of the mounting plate 1 is fixedly connected with uniformly distributed reinforcement frames 13, the mounting plate 1 plays a fixing role on the reinforcement frames 13, a connecting plate 12 is rotatably connected between the two reinforcement frames 13 on the corresponding sides, the upper end of the connecting plate 12 is fixedly connected with a mounting block 14, the connecting plate 12 plays a fixing role on the mounting block 14, the front side of the mounting block 14 is fixedly connected with a rotating seat 16, the mounting block 14 plays a fixing role on the rotating seat 16, the front side of the rotating seat 16 is rotatably connected with an arc plate 18, the other end of the arc plate 18 is fixedly connected with a clamping block 19, the arc plate 18 plays a fixing role on the clamping block 19, the lower end of the connecting plate 12 is fixedly connected with a mounting block 2 15, the connecting plate 1 2. The mounting block 2 15 has a fixing effect. The front side of the mounting block 2 15 is fixedly connected with a mounting box 17. The mounting block 2 15 has a fixing effect on the mounting box 17. The mounting box 17 is engaged with the clamping block 19. The outer end of the inner wall of the clamping block 19 is provided with a plug hole 20. The inner wall of the mounting box 17 is fixedly connected with a guide cylinder 21. The mounting box 17 has a fixing effect on the guide cylinder 21. The inner wall of the guide cylinder 21 is slidably connected with a plug rod 22. The plug rod 22 is engaged with the plug hole 20. One side of the plug rod 22 is fixedly connected with a pull rod 23. The plug rod 22 has a fixing effect on the pull rod 23. A spring 24 is sleeved on the outside of the pull rod 23. The pull rod 23 can be driven to move by pulling the plug rod 22, and the spring 24 is contracted under force.

[0027] In this embodiment, the outer end of the spring 24 is fixedly connected to the inner wall of the plug rod 22 , and the inner end of the spring 24 is fixedly connected to the outer side of the plug rod 22 , in order to further improve the stability of the spring 24 . Example 2

[0028] Based on Example 1, a preferred embodiment of the chest expander for animal experiments provided by the utility model is as follows: Figures 1 to 5 As shown: a positioning frame 2 is fixedly connected to the rear side of the mounting plate 1, and the mounting plate 1 fixes the positioning frame 2. A motor 3 is fixedly connected to the top of the positioning frame 2 in order to further improve the stability of the motor 3.

[0029] In this embodiment, the driving end of the motor 3 is fixedly connected to a worm 4, which can be driven by the motor 3 to rotate. The left side of the worm 4 is meshingly connected to a worm wheel 5. During the rotation process, the worm 4 drives the worm wheel 5 to rotate through its own meshing transmission.

[0030] In this embodiment, a screw rod 6 is fixedly connected to the middle of the inner wall of the worm wheel 5. The rotation of the worm wheel 5 drives the screw rod 6 to rotate. The front end of the screw rod 6 is rotatably connected to the inner wall of the positioning frame 2 to further improve the stability of the screw rod 6 during rotation.

[0031] In this embodiment, a limiting ring 7 is fixedly connected to the rear side of the screw rod 6, and a threaded block 8 is threadedly connected to the outer side of the screw rod 6. The screw rod 6 rotates to drive the threaded block 8 to move, and the threaded block 8 can be limited by the limiting ring 7 to avoid excessive displacement.

[0032] In this embodiment, the outer side of the threaded block 8 is fixedly connected to the left and right opposite articulated frames 9, and the threaded block 8 drives the articulated frames 9 to move synchronously, and the inner side of the articulated frames 9 is rotatably connected to the connecting rod 10.

[0033] In this embodiment, the other end of the connecting rod 10 is rotatably connected to an articulated frame 11. During the movement process, the articulated frame 19 drives the connecting plate 12 to move through the connecting rod 10. The corresponding side articulated frame 11 is fixedly connected to the rear side of the corresponding side connecting plate 12, and further drives the connecting plate 12 to rotate.

[0034] The working principle and use process of the utility model are as follows: first, the animal arm is fitted with the connecting plate 12 and placed on the arc plate 18, and the pull rod 23 is pulled outward to drive the plug rod 22 to move on the inner wall of the guide cylinder 21, and the spring 24 is forced to shrink. At this time, the arc plate 18 is rotated to engage the clamping block 19 with the installation box 17, and the pull rod 23 is released. The spring 24 rebounds by its own elastic force, and then drives the plug rod 22 to reset and insert into the plug hole 20, thereby completing the installation of the arc plate 18, and fixing the animal arm by the clamping block 19, thereby ensuring that the arm of the animal experimental subject remains stable during the chest expansion process, preventing it from moving or twisting uncontrollably, thereby improving the stability and repeatability of the experiment. Start the motor 3, and the motor 3 drives the worm 4 to rotate. During the rotation, the worm 4 drives the worm wheel 5 to rotate synchronously through its own meshing transmission, and further drives the screw 6 to rotate. The rotation of the screw 6 drives the threaded block 8 to move, and further drives the articulated frame 1 9 to move. During the movement, the articulated frame 1 9 is transmitted through the connecting rod 10 and the articulated frame 2 11, and drives the connecting plate 12 to rotate with the center point of the reinforcement frame 13 as the axis, so as to achieve the chest expansion effect for the animal. Through the characteristics of the worm 4 and the worm wheel 5, the uniform distribution of force in the chest expansion process is ensured, and local excessive pressure or uneven chest expansion effect on the animal experimental body is avoided, thereby improving the accuracy and reliability of the experiment.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chest expander for animal experiments, comprising a mounting plate (1), characterized in that: The outer side of the mounting plate (1) is fixedly connected to a uniformly distributed reinforcement frame (13), a connecting plate (12) is rotatably connected between two reinforcement frames (13) on the corresponding sides, the upper end of the connecting plate (12) is fixedly connected to a mounting block 1 (14), the front side of the mounting block 1 (14) is fixedly connected to a rotating seat (16), the front side of the rotating seat (16) is rotatably connected to an arc plate (18), the other end of the arc plate (18) is fixedly connected to a clamping block (19), and the lower end of the connecting plate (12) is fixedly connected to a mounting block 2 (15). The front side of the second mounting block (15) is fixedly connected with a mounting box (17), the mounting box (17) is engaged with the clamping block (19), the outer end of the inner wall of the clamping block (19) is provided with a plug hole (20), the inner wall of the mounting box (17) is fixedly connected with a guide cylinder (21), the inner wall of the guide cylinder (21) is slidably connected with a plug rod (22), the plug rod (22) is engaged with the plug hole (20), one side of the plug rod (22) is fixedly connected with a pull rod (23), the outer side of the pull rod (23) is provided with a spring (24).

2. A chest expander for animal experiments according to claim 1, characterized in that: The outer end of the spring (24) is fixedly connected to the inner wall of the plug-in rod (22), and the inner end of the spring (24) is fixedly connected to the outside of the plug-in rod (22).

3. The chest expander for animal experiments according to claim 1, characterized in that: A positioning frame (2) is fixedly connected to the rear side of the mounting plate (1), and a motor (3) is fixedly connected to the top end of the positioning frame (2).

4. A chest expander for animal experiments according to claim 3, characterized in that: The driving end of the motor (3) is fixedly connected to a worm (4), and the left side of the worm (4) is meshingly connected to a worm wheel (5).

5. The chest expander for animal experiments according to claim 4, characterized in that: A screw rod (6) is fixedly connected to the middle of the inner wall of the worm wheel (5), and the front end of the screw rod (6) is rotatably connected to the inner wall of the positioning frame (2).

6. The chest expander for animal experiments according to claim 5, characterized in that: The rear side of the screw rod (6) is fixedly connected to a limiting ring (7), and the outer side of the screw rod (6) is threadedly connected to a thread block (8).

7. The chest expander for animal experiments according to claim 6, characterized in that: The outer side of the threaded block (8) is fixedly connected to a hinged frame (9) opposite to the left and right, and the inner side of the hinged frame (9) is rotatably connected to a connecting rod (10).

8. The chest expander for animal experiments according to claim 7, characterized in that: The other end of the connecting rod (10) is rotatably connected to a second articulated frame (11), and the second articulated frame (11) on the corresponding side is fixedly connected to the rear side of the connecting plate (12) on the corresponding side.

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